BIOLOGY STAAR REVIEW 2022

A sequence of a DNA template strand is shown.

3' TAC AAT GGC TTA TTT ATC 5'

Which of these is the correct amino acid chain produced from the DNA template strand?

• Tryptophan - Phenylalanine - Leucine - Glycine - Asparagine - Phenylalanine

• Methionine - Tyrosine - Phenylalanine - Leucine - Proline - Lysine - Stop

• Methionine - Leucine - Proline - Asparagine - Lysine - Stop

• Arginine - Leucine - Proline - Asparagine - Lysine- Arginine

Tags

NGSS.HS-LS1-1

The Himalayan rabbit’s habitat has cold, snowy winters and mild summers. The body is typically covered in white fur except for the nose, feet, tail, and ears, which are covered in black fur.

A scientist shaved an area of white fur on the back of a Himalayan rabbit and placed an ice pack over the shaved area. The shaved area grew black fur. Which of these best explains why the hair that grew back where the ice pack was placed was black and not white?

• The coat color changed from white to black with the age of the rabbit.

• The genes for black hair were activated by specific temperatures.

• White hair only grows during certain times of the year.

• The white hair mutated to black hair as the rabbit’s body temperature decreased.

Tags

NGSS.HS-LS3-2

Enzymes are proteins that have two primary functions. Which answer below has the correct paring of functions?

• Raises activation energy and slows rate of reaction

• All of the above

• Lowers activation energy and increases the rate of reaction

• None of the above

Which of the following changes will denature an enzyme from optimal conditions?

• Increase in temperature.

• Increase in pH.

• Decrease in pH.

• All of the above.

This organelle is responsible for organizing the microtubials during cell division.

• small vacuole

• Peroxisome

• Ribsomes

• Centrioles

Tags

NGSS.HS-LS1-4

Which of the following are in both prokaryotic and eukaryotic cells? Select all that apply.

• Cell Membrane

• Nucleus

• Genetic Material

• Large Vacuole

• Mitochondria

What is letter A pointing at?

• Deoxyribose Sugar

• Phosphate group

• Nitrogenous Base

• Covalent bonds

What is letter D pointing at?

• Hydrogen Bonds

• Phosphate Group

• Nitrogenous base

• Covalent bonds

At the cellular level, what causes a tumor?

• Uncontrolled or unregulated cell growth

• G1 phase

• DNA replication

• Bacterial infection

Tags

NGSS.HS-LS1-4

NGSS.HS-LS3-2

What does the process of mitosis create?

• Two genetically different cells

• Two gametes (sex cells)

• Two genetically identical somatic cells

• 1 identical cell, 1 different cell

Tags

NGSS.HS-LS1-4